https://i.etsystatic.com/18749414/r/il/d8479b/3099409659/il_fullxfull.3099409659_giqc.jpg
it's kind of forgotten now, but those used to be a major home decor element in the postwar period. you can see them in contemporary films like 'man in the gray flannel suit.'(http://www.autoadmit.com/thread.php?thread_id=5283068&forum_id=2#45879949)
i think it's because parents liked them because they were educational, and kids liked them because birds are neat.(http://www.autoadmit.com/thread.php?thread_id=5283068&forum_id=2#45879961)
parents have a couple of those (http://www.autoadmit.com/thread.php?thread_id=5283068&forum_id=2#45879963)